Scientists successfully used a wood-rotting fungus called Trametes hirsuta to convert ramon tree seeds (which contain lots of starch) into bioethanol in a simple one-step process. The fungus naturally produces its own enzymes to break down the starch and ferment it into ethanol, eliminating the need for expensive commercial enzymes. The leftover material from this process contains high protein content and could be used as animal feed, making the process economically attractive for sustainable biofuel production.